ClinVar Miner

Submissions for variant NM_006218.4(PIK3CA):c.1136C>G (p.Ser379Cys)

dbSNP: rs1724507950
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Total submissions: 1
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Invitae RCV001922243 SCV002156838 uncertain significance Cowden syndrome 2021-03-27 criteria provided, single submitter clinical testing In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is expected to disrupt PIK3CA protein function. This variant has not been reported in the literature in individuals with PIK3CA-related conditions. This variant is not present in population databases (ExAC no frequency). This sequence change replaces serine with cysteine at codon 379 of the PIK3CA protein (p.Ser379Cys). The serine residue is highly conserved and there is a moderate physicochemical difference between serine and cysteine.

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